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Hot Rod Bio: Finnegan's Supercharged LS Swapped OBS Chevy Truck at SEMA

Mike Finnegan's OBS Chevy

LS Swapped Chevy Truck at SEMA Featuring CVF Supercharger Drive System

A Low Mileage Truck Turned Restomod
This build started the way many projects do, with late night internet browsing. Mike Finnegan from Finnegan’s Garage came across an incredibly low mileage Chevy truck showing just over twelve thousand miles. After confirming it was legitimate, he flew to Texas, bought it, and road tripped it home. Once it was back in the garage, it became clear the truck was too nice not to modify.

Keeping the Factory Look
Rather than stripping everything away, the goal was to preserve the original work truck feel. The truck retains crank windows, vinyl floors, and a bench seat. The bed liner and interior were color matched to keep the factory styling while still making the truck functional.

Built to Be Approachable
Unlike many large scale fabrication builds, this project was intentionally designed so it could be replicated at home. Outside of minimal exhaust welding and small brackets, nearly everything bolted in. The entire build came together in roughly thirty days.

Mike Finnegan's OBS Chevy LS Harrop TVS 2650 Supercharger with CVF Reaper Serpentine

Big Cubic Inch LS Power
Under the hood is a Texas Speed built LS based on a Dart LSX block with PRC heads. Displacement comes in at 432 cubic inches and is topped with a Harrop TVS 2650 supercharger. The combination is capable of producing well over one thousand horsepower.

Transmission and Engine Management
Power is sent through a built 6L90 transmission designed to handle serious abuse. The drivetrain is managed by a Holley Terminator X system, allowing for clean wiring and straightforward tuning.

Mike Finnegan's OBS Chevy LS Harrop TVS 2650 Supercharger with CVF Reaper Serpentine

CVF Accessory Drive System
This truck is the first fully running vehicle equipped with CVF’s dedicated supercharger drive system. Developed in partnership with Heath Moore from Harrop Engineering, the system uses a separate ten rib belt for the supercharger and an eight rib belt for the accessories to prevent belt slip at high boost.

Designed for High Horsepower Loads
The drive system was engineered to support large electrical and hydraulic demands. A high output alternator handles dual fuel pumps, fans, and audio upgrades, while the KRC power steering pump supports hydroboost or traditional power steering setups.

Compact Fitment with Clean Styling
A key design goal was keeping accessories tight to the engine profile. The system follows the engine silhouette closely, allowing fitment in most engine bays with minimal modification. Polished pulleys give the setup a billet wheel appearance, with additional black anodized finish options available.

Built to Be Driven
Despite the power potential, this truck remains fully usable. It was completed just days before SEMA, driven, transported, and displayed without issue. Once tuning is finalized, it is expected to comfortably produce four digit horsepower while remaining street friendly.

To see the full walk around and hear details directly from Mike Finnegan, Heath Moore, and Dane Bremer, watch the full video on the CVF Racing YouTube channel.

Nov 12th 2024 CVF

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